Late summer changes in burning conditions in the boreal regions and their implications for NO x and CO emissions from boreal fires

Detalhes bibliográficos
Autor(a) principal: Lapina, K.
Data de Publicação: 2008
Outros Autores: Honrath, Richard, Owen, R. Chris, Val Martin, Maria, Hyer, E. J., Fialho, Paulo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.3/1471
Resumo: Copyright © 2008 American Geophysical Union. All Rights Reserved.
id RCAP_e2ff241cb9575aec424cba30d4d82c73
oai_identifier_str oai:repositorio.uac.pt:10400.3/1471
network_acronym_str RCAP
network_name_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository_id_str 7160
spelling Late summer changes in burning conditions in the boreal regions and their implications for NO x and CO emissions from boreal firesBoreal FiresNitrogen OxidesCarbon MonoxideNorth AtlanticCopyright © 2008 American Geophysical Union. All Rights Reserved.Building emission inventories for the fires in boreal regions remains a challenging task with significant uncertainties in the methods used. In this work, we assess the impact of seasonal trends in fuel consumption and flaming/smoldering ratios on emissions of species dominated by flaming combustion (e.g., NO x ) and species dominated by smoldering combustion (e.g., CO). This is accomplished using measurements of CO and NO y at the free tropospheric Pico Mountain observatory in the central North Atlantic during the active boreal fire seasons of 2004 and 2005. ΔNO y /ΔCO enhancement ratios in aged fire plumes had higher values in June-July (7.3 × 10−3 mol mol−1) relative to the values in August-September (2.8 × 10−3 mol mol−1), indicating that NO x /CO emission ratios declined significantly as the fire season progressed. This is consistent with our understanding that an increased amount of fuel is consumed via smoldering combustion during late summer, as deeper burning of the drying organic soil layer occurs. A major growth in fuel consumption per unit area is also expected, due to deeper burning. Emissions of CO and NO x from North American boreal fires were estimated using the Boreal Wildland Fire Emissions Model, and their long-range transport to the sampling site was modeled using FLEXPART. These simulations were generally consistent with the observations, but the modeled seasonal decline in the ΔNO y /ΔCO enhancement ratio was less than observed. Comparisons using alternative fire emission injection height scenarios suggest that plumes with the highest CO levels at the observatory were lofted well above the boundary layer, likely as a result of intense crown fires.American Geophysical Union (AGU)Repositório da Universidade dos AçoresLapina, K.Honrath, RichardOwen, R. ChrisVal Martin, MariaHyer, E. J.Fialho, Paulo2012-09-27T11:50:36Z2008-06-102012-09-26T16:40:09Z2008-06-10T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.3/1471engLapina, K.; Honrath, R. E.; Owen, R. C.; Val Martín, M.; Hyer, E. J.; Fialho, P. Late summer changes in burning conditions in the boreal regions and their implications for NO x and CO emissions from boreal fires, "Journal of Geophysical Research", 113, D11, D11304-1-D11304-13, 2008.0148-0227 (Print)info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-12-20T14:29:13Zoai:repositorio.uac.pt:10400.3/1471Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:24:19.921536Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Late summer changes in burning conditions in the boreal regions and their implications for NO x and CO emissions from boreal fires
title Late summer changes in burning conditions in the boreal regions and their implications for NO x and CO emissions from boreal fires
spellingShingle Late summer changes in burning conditions in the boreal regions and their implications for NO x and CO emissions from boreal fires
Lapina, K.
Boreal Fires
Nitrogen Oxides
Carbon Monoxide
North Atlantic
title_short Late summer changes in burning conditions in the boreal regions and their implications for NO x and CO emissions from boreal fires
title_full Late summer changes in burning conditions in the boreal regions and their implications for NO x and CO emissions from boreal fires
title_fullStr Late summer changes in burning conditions in the boreal regions and their implications for NO x and CO emissions from boreal fires
title_full_unstemmed Late summer changes in burning conditions in the boreal regions and their implications for NO x and CO emissions from boreal fires
title_sort Late summer changes in burning conditions in the boreal regions and their implications for NO x and CO emissions from boreal fires
author Lapina, K.
author_facet Lapina, K.
Honrath, Richard
Owen, R. Chris
Val Martin, Maria
Hyer, E. J.
Fialho, Paulo
author_role author
author2 Honrath, Richard
Owen, R. Chris
Val Martin, Maria
Hyer, E. J.
Fialho, Paulo
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório da Universidade dos Açores
dc.contributor.author.fl_str_mv Lapina, K.
Honrath, Richard
Owen, R. Chris
Val Martin, Maria
Hyer, E. J.
Fialho, Paulo
dc.subject.por.fl_str_mv Boreal Fires
Nitrogen Oxides
Carbon Monoxide
North Atlantic
topic Boreal Fires
Nitrogen Oxides
Carbon Monoxide
North Atlantic
description Copyright © 2008 American Geophysical Union. All Rights Reserved.
publishDate 2008
dc.date.none.fl_str_mv 2008-06-10
2008-06-10T00:00:00Z
2012-09-27T11:50:36Z
2012-09-26T16:40:09Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.3/1471
url http://hdl.handle.net/10400.3/1471
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Lapina, K.; Honrath, R. E.; Owen, R. C.; Val Martín, M.; Hyer, E. J.; Fialho, P. Late summer changes in burning conditions in the boreal regions and their implications for NO x and CO emissions from boreal fires, "Journal of Geophysical Research", 113, D11, D11304-1-D11304-13, 2008.
0148-0227 (Print)
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Geophysical Union (AGU)
publisher.none.fl_str_mv American Geophysical Union (AGU)
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
_version_ 1799130688894533632

Registros relacionados